Abstract
Adult femaleLophyroplectus luteator (Thunb.) oviposit in all feeding stages ofNeodiprion sertifer (Geoff.), although they prefer the smallest of any larvae present at a given time. Females tend to distribute eggs contagiously both within and between host feeding colonies. Eclosion of eggs does not occur until after the host has spun its cocoon. Larval development then requires approximately 1 month in the laboratory. There is an obligatory eonymphal diapause which requires a minimum of 60–80 days at 2°C to fulfil, and post-diapause development requires 3–4 weeks.
Résumé
La femelle adulte deLophyroplectus luteator (Thumb.) dépose ses œufs chezNeodiprion sertifer (Geoff.) à tous les stades de nutrition, encore qu'elle préfère les plus petites de n'importe quelles larves présentes à un moment donné. Les femelles tendent à distribuer leurs œufs d'une manière contagieuse tant à l'intérieur qu'entre les colonies de l'hôte au stade de nutrition. L'éclosion des œufs ne survient qu'après que l'hôte a filé son cocon. La croissance larvaire prend alors près d'un mois en laboratoire. Il y a une diapause nymphale obligatoire qui nécessite un minimum de 60 à 80 jours à 2°C pour s'accomplir, et le développement après diapause réclame 3 à 4 semaines.
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Griffiths, K.J. The biology ofLophyroplectus luteator [Hym.: Ichneumonidae] onNeodiprion sertifer [Hym.: Diprionidae] in Ontario. Entomophaga 20, 97–103 (1975). https://doi.org/10.1007/BF02373455
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DOI: https://doi.org/10.1007/BF02373455